3Windows_menu

// 3Windows_menu.cpp : 定义应用程序的入口点。
//

#include "stdafx.h"
#include "3Windows_menu.h"
#include <iostream>

HINSTANCE g_hInst;
HANDLE g_hStdout = NULL;
BOOL g_bCheckCut = FALSE; //是看Cut项有没有被选择上


//宏定义输入函数
#define PrintLog(x) WriteConsole(g_hStdout, x, strlen(x), NULL, NULL);

void OnCreate(HWND hWnd, UINT nMsg, WPARAM wParam, LPARAM lParam)
{
	PrintLog("OnCreate!\n");
	HMENU hMainMenu = CreateMenu();
	//增加菜单项，用AppendMenu
	//下面这三句如果不注释掉会多产生一块母菜单
	//AppendMenu(hMainMenu, MF_STRING, 2001, "文件");
	//AppendMenu(hMainMenu, MF_STRING, 2002, "编辑");
	//AppendMenu(hMainMenu, MF_STRING, 2003, "帮助");

	//增加弹出菜单项抽象
	HMENU hFileMenu = CreatePopupMenu();
	HMENU hEditMenu = CreatePopupMenu();
	HMENU hHelpMenu = CreatePopupMenu();

	//增加弹出菜单项实体
		//新建菜单
	AppendMenu(hFileMenu, MF_STRING|MF_CHECKED, 3001, "新建(&N)"); //&N 加快捷键N
	AppendMenu(hFileMenu, MF_SEPARATOR, NULL, NULL);
	AppendMenu(hFileMenu, MF_STRING, 3002, "退出(&X)"); //Disabled无法被选择
		//编辑菜单
	AppendMenu(hEditMenu, MF_STRING, 4001, "剪切(&T)");
	AppendMenu(hEditMenu, MF_STRING, 4002, "复制(&C)");
	AppendMenu(hEditMenu, MF_STRING, 4003, "粘贴(&P)");
		//帮助
	AppendMenu(hHelpMenu, MF_STRING, 5001, "关于(&A)");
	AppendMenu(hHelpMenu, MF_STRING | MF_DISABLED, 5002, "注册(&R)");
	AppendMenu(hHelpMenu, MF_STRING, 5003, "帮助(&H)");

	//增加弹出方法
	AppendMenu(hMainMenu, MF_STRING | MF_POPUP, (UINT)hFileMenu, "文件(&F)");//文件弹出
	AppendMenu(hMainMenu, MF_STRING | MF_POPUP, (UINT)hEditMenu, "编辑(&E)"); //编辑弹出
	AppendMenu(hMainMenu, MF_STRING | MF_POPUP, (UINT)hHelpMenu, "帮助(&H)"); //帮助弹出

	//显示菜单
	SetMenu(hWnd, hMainMenu);
	//SetMenu(hWnd, hFileMenu); //err

}

//命令处理
void OnCommand(HWND hWnd, UINT nMsg, WPARAM wParam, LPARAM lParam)
{
	CHAR szText[256] = { 0 };
	sprintf_s(szText, 256, "OnCommand ID:%d\n", LOWORD(wParam));
	PrintLog(szText);
	switch (LOWORD(wParam))
	{
	case 3002:
		PostQuitMessage(0);
		break;
	case 3001:
		PrintLog("新建菜单！\n");
		break;
	case 4001: //取返一下，来改变剪切前的勾
		g_bCheckCut = !g_bCheckCut;
		break;
	}


}

void OnInitMenuPopup(HWND hWnd, UINT nMsg, WPARAM wParam, LPARAM lParam)
{
	CHAR szText[256] = { 0 };
	sprintf_s(szText, 256, "OnInitMenuPopup: WPARAM=%08X, LPARAM=%08X\n", wParam, lParam);//打成十六进制

	PrintLog(szText);

	//给剪切前加对勾
	if (TRUE == g_bCheckCut)
	{
		HMENU hMenu = (HMENU)wParam; //传过来的参数就是HMENU句柄
		CheckMenuItem(hMenu, 4001, MF_CHECKED | MF_BYCOMMAND);
	}
	else
	{
		HMENU hMenu = (HMENU)wParam; //传过来的参数就是HMENU句柄
		CheckMenuItem(hMenu, 4001, MF_UNCHECKED | MF_BYCOMMAND);
	}

}

LRESULT CALLBACK WndProc(HWND hWnd, UINT nMsg, WPARAM wParam, LPARAM lParam)
{
	switch (nMsg)
	{
	case WM_CREATE:
		OnCreate(hWnd, nMsg, wParam, lParam);
		break;
	case WM_COMMAND:
		OnCommand(hWnd, nMsg, wParam, lParam);
		break;
	case WM_INITMENUPOPUP:
		OnInitMenuPopup(hWnd, nMsg, wParam, lParam);
		break;
	case WM_DESTROY:
		PostQuitMessage(0);
		break;
	}
	return DefWindowProc(hWnd, nMsg, wParam, lParam);
}

BOOL RegisterWnd(LPSTR pszClassName)
{
	WNDCLASSEX wce = { 0 };
	wce.cbSize = sizeof(wce);
	wce.cbClsExtra = 0;
	wce.cbWndExtra = 0;
	wce.hbrBackground = HBRUSH(COLOR_BTNFACE + 1);
	wce.hCursor = NULL;
	wce.hIcon = NULL;
	wce.hIconSm = NULL;
	wce.hInstance = g_hInst;
	wce.lpfnWndProc = WndProc;
	wce.lpszClassName = pszClassName;
	wce.lpszMenuName = NULL;
	wce.style = CS_VREDRAW | CS_HREDRAW;

	ATOM aTom = RegisterClassEx(&wce);
	if (aTom == 0)
	{
		return FALSE;
	}
	else
	{
		return TRUE;
	}
}

HWND CreateWnd(LPSTR pszClassName)
{
	HWND hWnd = CreateWindowEx(0, pszClassName, "ttttt", WS_OVERLAPPEDWINDOW, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT,
		NULL, NULL, g_hInst, NULL);

	return hWnd;
}

void showWnd(HWND hWnd)
{
	ShowWindow(hWnd, SW_SHOW);
	UpdateWindow(hWnd);
}
void msg()
{
	MSG msg = { 0 };
	while (GetMessage(&msg, NULL, 0, 0))
	{
		TranslateMessage(&msg);
		DispatchMessage(&msg);
	}
}

//控制台
void ConsoleWnd()
{
	AllocConsole();
	g_hStdout = GetStdHandle(STD_OUTPUT_HANDLE);
	CHAR szText[] = "Debug start:\n";
	PrintLog(szText);
}

int WINAPI WinMain(_In_ HINSTANCE hInstance, _In_opt_ HINSTANCE hPrevInstance, _In_ LPSTR lpCmdLine, _In_ int nShowCmd)
{
	g_hInst = hInstance;
	ConsoleWnd();
	RegisterWnd("OOOO");
	HWND hWnd = CreateWnd("OOOO");
	showWnd(hWnd);
	msg();

	return 0;
}

来自为知笔记(Wiz)